12V Power Not working - HELP!

[kl9a]

This is my 3rd RRC-1258MkII with this issue.

USB power works just fine.  I can see the device via COM1.  I get this error:
"Running on USB power, skipping ethernet init."

The 12V power in the back is not being seen.  Currently *two* units are not working.  Both were unplugged for a few months and I just plugged them back in.

I tried pushing the reset button and resetting them that way and I still get the same problem. 

12V source confirmed OK.

Any ideas on what I can check, or anything else to try?  Seems odd that I have had this problem multiple times!
Would really like to be going for WPX CW this coming weekend...

Thanks,
Chris KL9A

[dj0qn]

Hi Chris,

That is indeed strange. I have seen dead power supplies, but never two of them at once. Resetting the RRC will
never make a difference, because this would be a hardware issue.

Did you try using a "real" 12v power supply? There is a cable included in the RRC box. This would then verify if
the problem is with the PS or RRC itself.

73,
Mitch DJ0QN / K7DX

[kl9a]

Yes, I have tried a real 12V supply and also the included wall warts.

[dj0qn]

Then I guess Mike will have to contact you about repair, or you should contact HRO if you
bought it from them.

73,
Mitch DJ0QN / K7DX

[sm2o]

if it does not work on 12V some of the protection  components or the EMI-filter on the 12V input may be damaged. They will of course not be damaged in normal use but can be if overvoltage is applied to the unit

73 mike